Is it really true that kangaroos and emus can't walk backwards (hence they are on the Australian coat of arms)? Is there science behind this or do people just assume they can't
![Werner Twertzog 在Twitter 上:"The emu cannot walk backwards, Not because of its joints, But because it has never known fear. http://t.co/vYX34nDJj1" / Twitter Werner Twertzog 在Twitter 上:"The emu cannot walk backwards, Not because of its joints, But because it has never known fear. http://t.co/vYX34nDJj1" / Twitter](https://pbs.twimg.com/media/CKJ6JQMW8AAjnCv.jpg)
Werner Twertzog 在Twitter 上:"The emu cannot walk backwards, Not because of its joints, But because it has never known fear. http://t.co/vYX34nDJj1" / Twitter
![Free Images : animal, wildlife, zoo, beak, gray, fauna, feathers, emu, vertebrate, ratite, long legs, flightless bird, the ostrich 4768x3168 - - 487458 - Free stock photos - PxHere Free Images : animal, wildlife, zoo, beak, gray, fauna, feathers, emu, vertebrate, ratite, long legs, flightless bird, the ostrich 4768x3168 - - 487458 - Free stock photos - PxHere](https://get.pxhere.com/photo/bird-animal-wildlife-zoo-beak-gray-ostrich-fauna-feathers-emu-vertebrate-ratite-long-legs-flightless-bird-the-ostrich-487458.jpg)